Remote Information Communication System and Linking Method Thereof

1. A linking method of an information communication system, comprising steps of: by an administration server, receiving a first request of a remote device via an Internet; by the administration server, in response to the first request of the remote device, assigning at least one linking server from a plurality of linking servers and providing the remote device with an address of the assigned linking server via the Internet, wherein the remote device links to and registers information of the remote device in the assigned linking server according to the address provided by the administration server, and wherein the remote device periodically requests the administration server to re-execute the assigning step and the providing step; by the administration server, responding to a second request of a proximal device for connecting to the remote device, providing the proximal device with the address of one of the assigned linking servers to which the remote device is registered via the Internet, wherein the proximal device sends a third request to the assigned linking server according to the address provided by the administration server; and by the assigned linking server, in response to the third request of the proximal device, facilitating establishment of a point-to-point (P2P) connection between the proximal device and the remote device.

2. The linking method according to claim 1 , wherein the administration server is one of a plurality of administration servers that constitutes a administration server group, and wherein the administration servers in the identical administration server group back up to each other, and each administration server stores a server list for recording information of one or more linking servers and a device list for recording information of one or more remote devices.

3. The linking method according to claim 1 , wherein the administration server assigns more than one linking servers to the remote device in response to the first request, and the remote device registers to these more than one linking servers.

4. The linking method according to claim 3 , wherein the administration server, in response to the second request of the proximal device for connecting to the remote device, selects one linking server from the more than two linking servers that the remote device registers in and informs said one linking server to the proximal device.

5. The linking method according to claim 1 , wherein the administration server provides different addresses for the remote devices at different geographic locations to register in the different linking servers.

6. The linking method according to claim 1 , wherein the plurality of linking servers constitute a linking server group, and wherein the linking servers in the identical linking server group back up to each other.

7. The linking method according to claim 1 , wherein the administration server updates a server list and a device list to increase or change the linking servers or the remote devices.

8. The linking method according to claim 1 , wherein the proximal device includes an application programming interface for sending the second request and the third request.

9. The linking method according to claim 1 , wherein the P2P connection between the proximal device and the remote device is established by hole punching performed by the linking server.

10. The linking method according to claim 1 , wherein the remote device periodically updates and registers the information thereof in the linking server that is assigned by the administration server.

11. The linking method according to claim 1 , wherein when the remote device again requests the administration server to provide the address of at least one linking server supporting the remote device, the remote device again links and registers the information thereof in the linking server according to the address provided again.

12. The linking method according to claim 1 , wherein the remote device is a security alarm device.

13. The linking method according to claim 1 , wherein the remote device is a home electric appliance.

14. The linking method according to claim 1 , wherein the proximal device is equipped with an audio/video playing function.

15. An information communication system, comprising: an administration server; and a plurality of linking servers connected to the administration server, for establishing point-to-point (P2P) connections, wherein the administration server, in response to a request of a remote device, assigns at least one linking server from the plurality of linking servers to a remote device and provides the remote device with an address of the assigned linking server via an Internet, and the remote device links and registers information of the remote device in the assigned linking server according to the address provided by the administration server; wherein a proximal device requests the administration server to provide the address of one of the assigned linking server corresponding to the remote device via the Internet, and the proximal device communicates with the assigned linking server according to the address provided by the administration server to establish a P2P connection between the proximal device and the remote device, and wherein the remote device periodically requests the administration server to re-provide the address for the remote device to register.

16. The information communication system according to claim 15 , wherein the administration server is one of a plurality of administration servers that constitute an administration server group, and wherein the administration servers in the identical administration server group back up to each other, and each administration server stores a server list for recording information of one or more linking servers and a device list for recording information of one or more service devices.

17. The information communication system according to claim 15 , wherein the plurality of linking servers constitute a linking server group, and wherein the linking servers in the identical linking server group back up to each other.

18. The information communication system according to claim 17 , wherein the linking servers are managed by different service providers.

19. The information communication system according to claim 17 , wherein the linking servers support different remote devices with different product types.

20. The information communication system according to claim 17 , wherein the linking servers are located at different geographic locations.

21. The information communication system according to claim 15 , wherein the proximal device includes an application programming interface for a user to address a request of finding out the linking server of the remote device.

22. The information communication system according to claim 15 , wherein the P2P connection between the proximal device and the remote device is established by hole punching performed by the linking server.

23. The information communication system according to claim 15 , wherein the remote device is a security alarm device.

24. The information communication system according to claim 15 , wherein the remote device is a home electric appliance.

25. The information communication system according to claim 15 , wherein the proximal device is equipped with an audio/video playing function.